Oftentimes when I wake up my MBP from sleep mode or reconnect the Thunderbolt hub, Apogee Duet stops responding to keyboard sound volume controls. When it happens, I can still change Duet’s volume from Maestro or Audio MIDI Setup.app, just not using the keyboard controls or OS X system volume slider.

Does Apple Mini DisplayPort to Dual Link DVI adapter introduce any lag? The answer is, probably not. At least I did not notice any difference when carrying out the experiment with my 1193 fps camera and Apple Cinema Display 30″.